An avulsed tooth can be stored in which of the following?

An avulsed tooth can be effectively stored in various mediums, and this choice encompasses all the possible options. Each of these substances serves to maintain the vitality of the tooth's periodontal ligament cells, which is crucial for potential re-implantation.

Whole milk is a commonly recommended option because it is isotonic and contains the necessary nutrients to keep the tooth viable for a longer period. The proteins and sugars in milk can help preserve the integrity of the cells.

Saliva from the injured person can also work as a storage medium since it contains natural proteins and is generally a suitable environment for the tooth. By placing the tooth back in the socket (if possible) or keeping it in the saliva, there is a chance to preserve the tooth's structural integrity until dental treatment is available.

Egg white is another medium used in emergency situations because it is biologically compatible and can protect the periodontal cells. This environment allows for some hydration and helps avoid further damage to the tooth.

Since all these options can feasibly help in preserving an avulsed tooth, selecting all of them as appropriate storage methods reflects a comprehensive understanding of immediate dental first aid.